A quantification of chemical and physical factors on SO2 oxidation catalysts

dc.contributor.author

Harmse, Barthlo von Moltitz

dc.date.accessioned

2009-02-19T12:43:50Z

dc.date.available

2009-02-19T12:43:50Z

dc.date.issued

1989

dc.identifier.uri

http://hdl.handle.net/10394/984

dc.description

Thesis (M.Ing. (Chemical Engineering))--PU for CHE, 1989.

dc.description.abstract

This study entailed the design and optimization of the supported liquid phase V2O5 catalyst
system for SO2 oxidation.
The active melt consisted of V205 dissolved in alkali metal pyrosulphates. The activity
increased with increasing ionic radii of the alkaline metal cation. Replacement of K by Na
decreases activity. There is an optimum vanadium to alkaline promoter ratio. An optimum
active constituent loading exists at 0,3cm³ melt /cm³ pore and this is determined by product
of the gas- and liquid phase effectiveness factors.
Studies on pellet size and geometry on reaction rate, pressure drop and mechanical strength
indicated that a high activity can be maintained by the use of exotic shapes with a substantial
reduction in bed pressure drop. The effect of geometry, amount of carrier matrix sintering and
liquid loading on mechanical strength was quantified at room- and operating temperature.

dc.publisher

Potchefstroom University for Christian Higher Education

dc.title

A quantification of chemical and physical factors on SO2 oxidation catalysts